Engine stop and recording device.



A. F. TYLER,

ENGINE STOP AND REGGRDING DEVICE.

APPLICATION FILED JUNE 1,1912.

1,065,153@ l Patenmun@ 17, `1913.

. Q WML/M W A. F TYLER.'

ENGINE STO? AND BBGDRDING DEVICE.

APPLIOATIOH FILED JUNI: 1, 1912.

2 SHEETS-BREST 8.

Patente@ June 17, 1913.

ASA F. TYLER, OF MEREIN, OREGON.

ENGINE STOP AND REGORDING\ DEVICE.

y Specification of Letters Patent.i\\

Patented June 17, 19136 Application inea June 1, 1912. serial No. rfotoca.

I l To all whom 2t may concern.' l

Be it known that I, Asa F. TYLER, a citizen of the United States, residing at Merlin, in the county of Josephine and State of Oregon, have invented certain new and use-4 ful Improvements in Engine Stop and Recor-ding Devices, of which the following is a specification.

The present invention relates to mechanism for automatically stopping an engine at a predetermined time; and also in case of accidental stoppage of the engine to indicate' the time of such stoppage.

The invention is designed more particularly for internal-combustion engines in which the electric current for the igniter circuit is derived from a battery. The device includes means for breaking the circuit when the engine stops, whereby waste of the electric current is prevented.

It is the object of the invention to provide a mechanism of the hind stated which is simple in construction and reliable in 0peration, and in which an ordinary alarmclock may be employed as the time-controlling element. i

vWith theseangd other objects in View as will be pointed out in, the detailed description appearing h/ereinafter, the invention consists in a novel combination of parts which will now be described, reference being had to the accompanying drawings, in which Figure 1 is a rear elevation, partly broken away, of the mechanism. Fig. 2 is a plan view. Fig. 3 is a perspective view of a fragment of the mechanism. Fig. 4c is a diagrammatic view Aof the mechanism.

Referring specifically to the drawing, 1U denotes an ordinary alarn'i-clock which is inclosed in a suitable casing 11. The alarmtrain of the clock is arranged in the usual manner and includes an oscillatory shaft 12 to which the hammer-stem 13 is fastened. From this shaftI extends a pin 14 which is engageable by a detent 15, which latter withdraws from the pin ata predetermined time, according to the time for which the alarm is set, and thus releases the shaft.

Instead of a hammer, the stem 13 carries at its outer end a block 1G of insulating material on which is mounted a contact strip 17. The alarm-bell is also removed from the clock. 0n the shaft 12 is made fast a lug 1S which is engageable by the free end of a spring 19 suitably mounted in the housing of the clock.

The clock-casingat the top thereof, earries a'support 2O on which is mounted a block 20r1 of insulation. This block carries two binding posts 21, and 22, respectively. To the binding post 21 is connected a switch tongue 235, and to the binding post 22 a switch tongue 2-1. These two tongues are engageable by the contact strip 17 when the detent 15 engages the pin 14, and when the detent is retracted to release tliekhaft 12, the spring 19, through the lug 18, rocks said shaft in a directionto disengage the -contact strip/from the tongues, the stem 1 3 swinging. with the shaft.

From the binding posta conductor 25 leads to a switch tongue 26 mounted in the casing 11 on one end of the walls thereof. On said end wall is also mounted a switch lever 261 from which a conductor 27 leads to a binding post 2S on the opposite end wall of the casing 11.v On the last-mentioned end wall of the easing is a binding post 29 from which a conductor 30 leads to the binding post 21. To the binding posts 2S and 29 are connected the wires 31 of the two sides of the ignition circuit, said wires leading to the igniter 32 of the engine which latter is shown diagrammatically at 33 in Fig. L1. In the ignition circuit is interposed a battery 31 from which the electric current is derived.

()n the outside of the casing 11, adjacent to one end thereof, are mounted bearings '35, in which is supported the shaft ilo of an ordinary centrifugal speed governor 37, which latter is driven from the engine the shaft 36 being belted or otherwise geared thereto, The governor actuates a sleeve 3S, which slides bach and forth on the shaft il() as the governor responds to the. varying speeds at which the engine runs.

(1)11 a suitable support 3S), is fulcrumed at 10, a lever -l-l having at one end a yoke -12 which straddles the shaft 3G and bears against the sleeve 23S. The other end of the v rbalance-wheel 4G.

and

ing poet t7 also secures a contact. Springl lowing manner: lVhen the engine Stops the having an uplurned end 5() which bears against the lever 171.

To the pivot of the vSwitch lever 26 is secured a tlat spring 51 having a forked free end which etraddles4 the lever `11. double hook :3 3 carried by the lever il. engages the 1fork branches. The spring 51 `serves` to swing the lever 41 in a direction to disengage the pin Jfrom the balance-wheel JLG, and also to hold said lever in contact with the spring 50.

The operation of the apparatus is as foliows: rThe contact Strip 17 is placed in engagement with the switch tongues 23 a nd the alarm being Set to go ott1 at the desired time. The ignition circuit is now closed, and the engine may be started. The circuit may be traced as follows: troni one side of the battery 34 to binding post by conductor 27 to switch 26a and thence by conductor to switch tongue 24, and through Contact 17 to switch tongue 23 and thence by conductors El() and 31 to the igniter Si), and back to the other side of the battery. lt' the switch 26 is open the circuit is from the conductor 2T to spring 51, lever 41, spring 50, and hy conductor 4S to switch tongue Q-t. The switch 26 is used 'for starting only. Zhen the time arrives for which the alarm has been set, the detent 15 is retracted, whereupon the contact 17 is withdrawn from the switch tongues 23 and 24., and the eir' cuit is broken. The igniter is thus thrown ont of action and the engine stops. lt Will therefore be Seen that the engine is time-- 'of an accidental stoppage of the engine opcrates` as follows: `When the engine 33 is running the weights of the governors 37 liy outward and draw the Sleeve 38 along the shaft 556 in such a`direction that the lever` il is free to be swung by the spring 51 ina direction to make contact with the spring and also to Withdraw the pin 45 fromthel The Switch 26 is then thrown o. The clock is now started. The circuit isv new as follows: from one side of the battery Se to binding post 2S, by condoctors 27 to the pivot of the switch', then through spring 51, rod al1, spring 50 and conductor t8 to Switch tongue 24, and through contact 17 to switch tongue Q3, and then by conductors 530 and 531 to igniter and to the otherside of the battery. 'It now the engine should stop, the igniter circuit is broken and the clock is also stopped. yThe clock Will therefore correctly indicate the time of stoppage of the engine, and the battery current is also prevented from being wasted. This breaking otv the circuit and 'stcnfoage of the cloek is eitectcd in the fol.

weights o1 the governor 37 recede toward yhatt 2313. wherelrv .the sleeve 3S is pushed hack againSt the forked end of the lever- 41,

thus swinging the lever on its pivot in a direction to become disengaged from the spring 50, and to advance the pin 45 into engagement with the, balance-wheel 4G of the clock,'thereb v breaking the circuit and Stopping the clock, The switch 26 is used only for starting the apparatus.

The floor of the casing 11 carries a hook 54 which is designed to be slipped over the lever il to hold the same while thc mechanism is heilig set.

The mechanism an be thrown out. of operation by disconnecting the shaft 36 from the engine, and holding the lever `l1 in inoperative poaition by 'means of the hook 5l. It' the clock .nop mechaniem is to be "sed only, all that is neceasary to do is to disconnect the conductor 3() t'rom the bindingpost- 21A and connect the lanic to the binding post 22.

l claim t 1. The conil'iinatimi of an internal-coinbustionengine and its ignition circuit, a

clock, a speed governor driven by the en-` gine` and a governor-eontrolled means for breaking the ignition circuit and stopping the clock.

2. The combination of an internal-co1n bastion engine and its ignition circuit, a speed governor driven by the engine, a clock, a lever actuated by the governor and havingr means for stopping the clock when swung in one direction, Said lever being in electrical connection wit-h the ignition circuit, and a contact in said circuit engageable by the lever.

The combination of'an internal-combustion engine and its ignition circuit, a Shaft driven from the engine, a. speed governor on said shaft, a sleeve carried by the lgovernor and slidahle on the shaft, a clock, a lever engagcable with the Sleeve and having ymeans,l for Atopping the clock when swung in one direction, .said lever being in electrical connection with the ignition circuit, and a contact in said circuit engageable by the lever.` y

4. The combination ot an internal-combustion engine and its ignition circuit, a speed-governor driven by the engine, an alarm clock, a contact carried by the hammer stem of the alarm train of the clock, contacts in the ignition circuit, said contacts heilig engageable by the first-mentioned contact, a lever actuated -by the governor and havingvmeans for Stopping the clock.

tion circuit., and aV Contact in said circuit engageable by the lever. r

5. The combination of an internal combus-tion engine and its ignition circuit, a speed-governor driven by the engine, an alarm clock, a contact carried by the hammer stein of the alarm train of the clock,- contacts in the ignition circuit, saidcon-` tact's being cngageable by the first-mentioned Contact, a lever actuated by the governor and haring moans for stopping the clock when swung in one direction, said lever being in electrical connection with the ignition circuit., and a contact connected to one of the second-mentioned contacts and engageable by the lever. c

6. The combination of an internal-combustion engine-and its 'ignition circuit, a clock, a movable element driven by the engine, and means operated by said element for breaking the ignition circuit and stop ping the clock.

The combination of an internal-combustion engine and its ignition circuit, a movable element driven by the engine, a clock, lever actuated by the movable element and having means for vstopping the clock when swung in one direction, said lever being in electrical connection with the ignition circuit, and a contact in said circuit engageable' by the lever.

8. The combination 'of an internabcombastion engine and its ignition circuit, a

movable element driven by the engine, an

alarm clock, a contact carried by the hammer stern/of the. alarm train of the clock, contacts in the Vignition circuit, said contacts being engageable by the first-mentioned contact, a lever actuated by the aforesaid movable element and having means for stopping the clock when swung in one direction, said lever being in electrical connection with the ignition circuit, and a Contact in said circuit engageable by the lever.

9. The combination of an internal-combustion engine and its ignition circuit, a movable element driven by the engine, an alarm clock, a contact carried by the hammer stem of the alarm tra-in of the clock, contacts in the ignition circuit, said contacts being engageable by the first-mentioned contact, a leveractuated by the aforesaid movable-element and having means for stopping the .clock when swung in one direction, said lever being in electrical connection with theignition circuit, and a Contact connected to one of the Secund mentioned contacts and engageable by 'the lever.

In testimony whereof I aHix my signature in presence of two witnesses.

Y Asa FJrYLER.

' Witnesses:

H. l". MCCLELLAN, J. J. Hansen. 

